Feed-water heater



(NoModeL) W. HERD.

FEED WATER HEATER.

N0.,354,194. Patented Dec. 14, 1886.

NNNNNN Inventor" UNITED STATES PATENT OFFI E.

WILLIAM HERD, OF HARRISON, NEXV JERSEY.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 354,194, dated December14, 1886.

Application filed April 5, 1856. Serial No. 197,789. (No model.)

To aZZ whom it may concern:

Be it known that I, WILLIAM HERD, a citizen of the United States,residing at Harrison, in the county of Hudson and State of New Jersey,have invented certain new and useful Improvements in Open FeedaterHeaters; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the artto which it-appertains to make and use the same, referencebeing had to the accompanying drawings,and to letters of referencemarked thereon, which form a part of this specification.

The object of this invention is to more perfectly utilize theexhaust-steam of an engine in heating the water for the boiler thereof,to provide a device of reduced cost of manufacture and increased ease ofapplication to an engine, and one of greater simplicity of constructionand convenience of manipulation.

The invention consists in the arrangements and combinations of parts,substantially as will be hereinafter set forth, and finally embodied inthe claims.

Referring to the accompanying drawings, in which like letters indicatecorresponding parts in each of the figures, Figure 1 is an elevation ofthe improved mechanism, and Fig. 2 is a vertical section of a portion ofthe same.

In said drawings, ais a pipe connected with or forming a part of theexhaust-pipe of an engine, through which all or a part of the exhaust-steam passes in the direction indicated by the arrow.

1) is a eold-water pipe of smaller diameter, provided at and toward itsend with anumber of perforations, as indicated in Fig. 2. Said pipe I)has its perforated end extended into the end of the pipe a, pointing inthe direction from which the steam enters, a chamber, a, being formedbetween the inner walls of the larger pipe and the outer walls of thesmaller pipe, a bushing, It, holding the parts together and in theirrelative positions and preventing the escape of steam and water, as willbe understood.

The water passing through the cold-water pipe and the perforationstherein forms in the chamber 0 a fine spray, and thus thoroughly mixeswith the exhaust-steam entering said chamber from the exhaust. The watercondenses the steamand takes up the heat thereof, and in its heatedcondition passes through the hot-water pipe cl to the pump, and fromthence to the boiler.

In other heaters of a somewhat similar construction (see, for example,Patents Nos. 146, 024 and 17 6,381) the steam enters the mixing-chamberand first strikes the imperforate side of the cold-water pipe beforecoming into contact with the water, thus producing more or less ofback-pressure in the exhaust-pipe and reducing its force, so that whenit comes into contact with the spray it is less perfectly condensed. Inthe improved device the water and steam enter from opposite directions,the

steam first striking the spray rather than the The receptacle 0 issuspended from the pipe.

a, as shown, and the exit-opening for the hot water is situated abovethe lower end, to provide room for the settlings. At the lower end asecond exit,/, is provided, through which the settlings may be forcedperiodically. This exit is provided with a suitable cock, 9.

\Vhile the exhaust-pi pe, or a branch thereof, directs the steam intoactual contact with the water and a large portion is taken up thereby, Ipreferably provide an exit for such portions of the exhaust-steam as arenot condensed, which eXit is not shown, it being the ordinary pipeleading to the open air.

lVhileI prefer the construction and arrangement of parts shown in thedrawings, I do not wish to be understood as limiting myself thereto, asmaterial changes may be made without departing from the invention.

Having thus described the invention, what I claim as new is- 1. Incombination in a feed-waterheatcr, the

to said pipe a, and a hot-water pipe, ('6, attached to said receptacle6, to lead the water there- 15 from to the pump or boiler, all saidparts being arranged and operating substantially as and for the purposesset forth.

In testimony that I claim the foregoing I have hereunto set my hand this22d day of 20 March, 1886.

WILLIAM HERD.

\Vitnesses:

CHARLES H. PELL, .FREDK. F. CAMPBELL.

